Mold for molding concrete.



G. W. HERING. MOLD FOR: MOLDING CONCRETE, APPLICATION FILED JUNBao, 1911.

` 'mend A111122, 1913.

Y Y /Wmon @907:96 Mrz??? WM y mom/frs UNITED giwrit-iva*A sonni/cin.

; GEORGE WASHINGTONHERING, oF- LnRcHMoNnjNEwyom.

MOLD FOR HOLDING CONCRETE.

Specification oflletters Patent.

Patented Apnea, 191e Appiianpn ined nine so, isii. .serial No. 636,210. i

To all 'whom t may concern.

Be it known that I, GEORGE HERING,

- a citizen of the United States, and a resident of Larchmont, in the county of Westchester and State of New York, have invented`\ ,-a

new and Improved Moldfor Molding Coni" crete,of which the following is a full, clear, and exact description.

This invention relates to a new and improved mold for molding concrete, cement or the like.

An 'object of this invention is to provide a moldhaving vcollapsible cores whereby a concrete orpcement shell may be formed and lthe core and mold removed without disturbing the shell.

Afurther object of this invention is to provide a mold with a collapsible-\core,- the core beingv connected to the mold, so that the movement Aof the latter will actuate the former to move thel parts thereolI out of contact with the shell' or core formed,

A still further object of this invention is to provide a new and improved method of molding concrete, which consists broadly in forminga preliminary shell of relatively Ydry concrete, and subsequently filling the saine with relatively wethoncrete, whereby a wall is formed which will have e smooth,

"vertical transverse section showing one of the cells lilled and others with the core molds inplace; and Fig. 4 is a fragmentary enlarged top plan view, showing the action in removingone of the cores of the mold.

-Referring more particularly to the separate parts of this invention as embodied in the form shown in the drawings, l indicates the bod` of the mold, which may be in the form o a frame embodying sides 2 and 3,

which may be movable'relative to-jthe l and 5.'

For the purpose of forming cells, in 'fQ-rming a wall or the like, there may be prbvided one or more cores or core molds 6,. Inthi instance five are shown, of which a liing intermediate one, indicated at 7, may

utilized to form the air-space inthe .wall,'-`v and supplementary cores 8 may be usedto form the cells in the wall which ltire tube subsequently filledl in accordancefgivith4v my. -improved method.

AThe cores (S are preferably collapsible, and inasmuch as they are fall of' the same chaff acter, only one will/be described. It Willbe seen by reference yto Fig. 4 that each -corf 'i comprises sides 9 dhd10, pivotally connected at their ends to ends of the core 11 and 12.

` These ends are preferably formed in sections 13 fand 14, which are pivoted on the one hand to the sides, and on the other hand to I each other, as at 15.- The points of pivotal` connection of the sections of the ends are connected pivot-ally to links 17 and 18, which e,

in .turn are pivotally connected to bars 19.v The barslll are secured to a shaft, which may be rotated by a handlev 21. It Willbe seen that when't-he handle 2l is rotated from the position shown in Fig. 1, tothe position shown in Fig. 4,' the pivotal points 1'5 will be drawn-nearer' the centeiwof the core, 'so that the sections will be swung relativeto each other`a siicient amount to draw the sides 9kand 10 toward each other, out of contact with 'the shell 'dconcreteformed.

It will be noted that the corners -of the sides 9 and l0 and of the ends llan'd' 12v 'are roundedso that they will'readilytcome bway.

` from the shell of concrete. In order to'allow for -the pivotalmovementlof the sections of the ends, they are" rabbeted or have their corners cut away,l as indicated at 22.

It may be desirable tofactuate the lsides .a

2 and 3 of the body portionL of the mold at the same time that one ofthe vcores is ectu-- ated, for example, the main core 7, which forms the air-shaft. or spacefjinthe wall.-`

F or this purpose, the sides of this core may be connected to the sides 2 and 3 of thebody portion of the mold by imeans of links'f2'3 and 24. It will be noted that the links 23, of which there are preferably a. plurality are connected to the side ofthe body p0rios l tion farthest away from the side of the 'core e formed, and the cores arranged in proper spaced relation from the body of the mold.l

`The s ace between` thevarious cores and the bo y portion or frame is then filled with comparatively dry concrete' or cement, that is to say, the concrete or cement or other plastic material is just moistened, so that 'it will readily dry out and set. After thespace'between the frame or body portion of the mold and the cores has been filled, the cores may be removed immediately, and the cells formed in the wall may be -filled with i comparatively wet cement or concrete. The y center cell, however, may be left empty to form an air-space. It will beseen that after this has been accomplished, the mainframe and the central core can be removedby turning the handle 21, and that the sides of the body portion 'of the mold and the sides of the ,core will be simultaneously 'moved away from the wall thus formed. r1`his operation can'be performed much more quicklyv than in theordinary process of molding, as the outer shell of the wall will be comparatively dry andl hard, while the inner cores ot the Wall, formed by llingV the cells, will be still f wet. '.Ihe section of the wall thus formed can beleft to set, and one of-the end pieces 4; of the -outer frame removed, and the mold shifted along', to form the next section' of the tier. While I ha've shown one embodiment ot myinventiom I do not wish to be limited tothe specic details thereof, but desire to be protected in various changes, valterations kand modifications which may come within the scope of theappended claims. j Having thus Llescribed my invention,l I claim as new anld d 'sire to secure by Let- 510 ters Patent l (l f l. A mold, comprising an outer trame and an inner core. said inner core being spaced apart from said outer` frame at a plurality ot j, points, so that a wall of concretevmay be `filled in between them, and comprising sides and ends movably connected together so as to be capable of collapsing toward each other out of contactgy with said wall, said outer frame comprising relatively movable so members, and connections between some of 'the elements of said coneiand'some of the members of' said frame vthereby the movement oftheone will be vcontrolled from the 2. mold',`eompirisiil1g.an,outer frame and an inner core, said inner core being spaced apart from said outer frame at a plurality of points, so that a 'wall of concrete may be filled in between them, and comprising sides and endsmovably connected together so as to be capable ofA collapsing toward each other out of contact with said Wall, Said outervframe comprising relatively movable members, connections between some of the elements oi" said core and some ot' the members of said frame, whereby the movement of the one will be controlled from the other, and means for moving the elements of said core relative to each other. to collapse and expand the same.

3. A core, comprising sides, endsformed of sections pivoted together and to the-sides, an operating 'shaft having oppositely' arranged members projecting therefrom, and

links pivoted to the pivots connecting the end sections and to the members ot the shaft.

4. A core, comprisingsides, ends embodying a plurality of sections, said sections being pivotally connected to each other and pivotally connected to-said sides, links connected to said ends at the pivotal junctions of said sections, and means for manipulatingsaid links so as to'pivot said sections relative to each other, whereby said sides are manipulated toward and from each other,

5. A core, comprising sides, ends embodying` a plurality ot sections, said sections being pivotally connected to said sides, and pivotally connected to each other, links connected to said ends at the pivotal junctions of said sections, and means for manipulating said links so as to pivot said sections relative to each other, whereby said sides are manipulated toward and from eachl other, said end projecting` beyond the ends ot said sides so as to leave a space into which said sides can move in collapsingtoward;

each 'other'. i

6. In a concrete mold, the combination with an. outer frame, embodying relatively movable sides and ends, of an inner core comprising sides, ends pivotally connected to said sides, said ends embodying a plurality of sections movable relative to each other, means for manipulating said Sections relative to each other so as to movesaid lastmentioned sides toward and from each other. and connecting links between the sides of said core and the sides of said frame, whereby the latter will be manipulated' Jfrom the former.

7. A concrete mold, comprising a frame,

yhaving movable members, a central collapsible core extending the length of the frame, a plurality of collapsible cores on each side of the central cone, and means whereby members of the frame will be moved outwardly when the/central; core is collapsed.

- 8. A ,conc'rete'rnold, comprising a lframe 13o having movable sides, a central collapsible name to this specification in che presence of core formed of sides and jointed ends hinged t-Wo subscribing Witnesses. to the sides, a plurality of collapsible cores at euch side of the central core, and links GEORGE WASHINGTON HERING' v5, connecting the sides of the central core with Witnesses:

the sides of the frame. H. WHITING,

In testimony wvvhereof I have signed my PHILIP D. ROLLHAUS. 

